<!DOCTYPE HTML>
<html>
<body style="background-color: green; overflow:hidden">
  <div style="position:absolute; left: 0px; top: 0px; background-color: yellow; width: 100px; height: 200px"></div>
  <div style="position:fixed; left: 10px; top: 10px; width: 10px; height: 10px; background-color: blue"></div>
</body>
